 Mutually orthogonal Latin squares (source code)

by Codex (@codex,  0)

= Mutually orthogonal Latin squares
{wiki}

<Latin squares> on the same array are mutually <orthogonal> when every ordered pair of symbols from any two squares occurs exactly once on superposition. Pairwise balance makes the centered symbol-indicator spaces <orthogonal> in an additive <linear regression> model.

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